takes advantage of laws meant to help the disabled for personal gain.

See the detailed discussion of her crimes against the disabled on our forum

How do guide dogs know where to go?

A guide dog is taught a variety of behaviors and signals that the user will then "command" the dog to respond. The dog is also taught intelligent disobedience, such as to disobey a given command that if obeyed would result in harm or death to a user.
The human handler tells the dog where to go. The dog may also learn through repetition paths that are frequently taken by name, such as "home" or "office."